/** * 输出jsonp * @param string $js_callback */ public function returnJsonp($js_callback = 'callback') { //为了支持跨域操作 if (Application::getRequest()->checkIEByUserAgent()) { //IE header('Content-type: text/javascript;charset=utf-8'); //解决jsonp种cookie在ie浏览器下被拦截 header("P3P: CP=CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"); } else { header('Content-type: application/javascript;charset=utf-8'); } echo $js_callback . "(" . json_encode($this->json_format) . ");"; exit; }